Knitting-machine.



l PATENTBD PEB. la, 1908. R. W. SCOTT. KNITTHIG MACHINE.

APPLICATION- FILED IAB. 3, 1902.

3 SHEETS-SHEET 2.

' PATENTE FEB. 1S, i908.

KENT

APPLICATION fum ma.

UNITED STATES PATENT oEEIoE.

vROBERT W. SCOTT, OF PHILADELPHIA, PENNSYLVANIA, ASSIGXOR OF ONE-HALF TOLOUIS N. D. WILLIAMS, OF ASHBOURXE, PEXXSYLYAXIA.

KNITTINGMACHINE.

Specification of Letters Patent.

Application ed Huch 3. 1992. Serial No. 96.456.

Patented Feb. 18,1908.

. To aZZ.wwm it may concern.

Be it known that I, ROBERT Vt". SCOTT, a citizen of the United States,residing in Philadel hia, `Pennsylvania., have invented certainmprovements in Knit-ting.\laehines,.

15. the fabric is composed.

The obj ect of my invention is to so construct such a machine as torender unnecessary the usual reciprocating hooks or sinkeis for therpose of forming the desired projecting oops of fleecing yarn, an objectwhich l at tain -hy the use of relativeljvv fixed sinkers in cooperationwith needles of the machine so actuated as to receive the lleecing yarnand draw loops of the same over o1; around said sinkers.

In the accompanying rlrawingsz-14`igure 1,is a vertical sectional viewof suiiicient of an ordinary type of rib knitting, machine 'toillustrate my invention; Fig. 2, is a front 4View of part of the same;Fig. 3, is a sectional plan view; Fig. 4, is a sectional view of part ofthe machine, illust-rating another ernbodiment of my invention. Fig. 5is an elevation of the innerl face of the cam cylinder of the machinedeveloped on a flatplane, Aand Figs. 6, 7, S and Q are enlarged viewsillustrative of the operation of the machine.

' Myinvention is applicable either to niachines having rotating needlecylinder and 40 dial and fixed cam carrier, or to machines having fixedneedle cylinder and dial and rotating cam carriers, the latter class ofma chine having7 been selected for illustration,

1 representing the fixed needle @vlinder of the machine, 2 the fixedneedle dial, 3 the rotating cam cylinder, and 4 the rotating dial camplate, all of these parts being constructed and operated in a mannercommon to ordinary knitting machines of this type with the exceptionthatthe cam cylinder 3 has in addition to the ordinary cams :c and :r

. (F 5) for operating the needles to receive andraw loops of theknitting yarn from the yarn guides 5 and 6, Fig. 3, another set of cams55. 7 (Figs. 1 and 5) for partially projecting the needles so that theyinayreceive fie'ecing yarn from a guide 9 mounted upon the rotatingcamcylinder 3 of the machine as shown in 'l"ig. '1, the partial projectionof said needles not being suilicient to clear the' stitches upon 50them, so that the needles, on their descent after having received theiieecine `varn. will simply draw loops of said yarn which will be castofi upon the next operation ofthe needles necessary to form stitches ofthe knitting varn in the production of the fabric, AThe length of theloops of ieecing yarn thus drawn by the knitting needles will bedependent upon t-he relation of the hooks of -the retracted needles tothe sinkers inter` 70 posed between the needle grooves; and.V in orderto insure the. desired extent of prnjection of the ,loop of fleecingyarn at each sinker w le of the fabric, at which itis le-h. sired to tus project the same l provide the needle cylinder 1 with sinl'cer bitsl() preferablysecured in place b vbeing let into grooves in the cylinderas shown in F igs. 'I'and 2, the

to s of these bits being beveled on the inner si e as shown in Fig. 1 soas to throw the 80 loop of fleecing yarn inwardl)v as it is drawn downover the bits b v the descending needles. the sinker hits extendinginwardly beyond the needle grooves to the extent desired` for thelengthof loop to be formed., y 'T hesinker i 8'5 bits are by preference,notched as shown' at 1l, in Fig. l, for the'p'uxpose of engaging withthe fleecing yarn and retainingl the same when the cylinder needles riset-oreceive fresh knitting yarn, thereby maintainino' the rejecting loopson that side of the ribbed itted web upon which it is desired that theloop shall be formed.

The notched sinker bits also actupon the stitches of the knitted web toprevent rise of the said web with the cylinder needles when the latterrise to receive the fresh knitting yarn, but otherwise do not aiiect theknitting operation. The fabric produced upon the machine issubstantially the same as that shown in the patent of Baron & IngallsNo. 603,164- dated April 26th 1898.

The operation of the machine is indicated in Figs. 6 to 9, Fig. 6showing the position of the parts after the cylinder and dial needleshave drawn their loops of yarn, F ig. 7 showing the cylinder needlepartially raised .so as to engage with the leecing yarn 1lb, Fig. S,showing said cylinder needle retracted so as to draw a loop of said.tieecing yarn over the sinker l0, and Fig. 9 showing the cylinderneedle :gnin l'nised thr'ongli the loops nll ileecing yarn i: andknittingv yarn g/.Y-so :i: to engage a fresh supply of said knittingi"nn y,--tl.\u dial needles being also projected so as to enga-ge saidyarn.

During the second rise of the cylinder needle the lleecing yarn loup.:is well :is the previously forint-d stitch ol' the knitted web. isengaged by the notched portion nl the sinker. and the lleecinjtr loop isretained behind beth sets of needles so that when cast oil by thecylinder needles un the dest-ent of the luttes' after engaging the freshknitting yarn. the loop will be delivered into the space between thecylinder aizd dial stitches. the surplus portion of the lleeeing loopprojet-tilt;r on one side of the l'nbrif.' between the wales ol' thesaine. :is shnwn in the inished pdtinn of the fabric repre nted in titedherent views.

I have shown the fleet-e lump tunning sinkets on the cylinder of thenniehine bnt they 11111)' be applied to` the tlizil if desired n to bothcylinder und dial, and the .sinkt nifty. in sonie eases. be formed :isin integnl ptiv t of thtl needle carrie? in ennnretiun v. ith which they:ire nsed instemt nl' being in the forni nl" inserted bits. the lattereenstfnctinn. linebever. beinfr preferred. (ln the otite: lian-ii.however. the sinke's muy be eniieti by ur forni part ol" :t heel mountensn as tn Le free to rotnte and ennsed to thus ietnteby engagement withthe needles u.' needle enziie: ot' the nim-hin?. one enim riant-nt ofsich idee` being shown in Fig. 4 .nheein lo" renie- .sent sinkersforming pmt of e. heel 1;. which is mounted so :is to ne fz'ee tu .Uniteon :i st'..-1i 13 carried by the eatin 'ylinie.' Il. the sinke srestingr un the tup of the needle i, \lin.ie.":in\l prtijeetinglit-ineen the neeajlesnt' the sanne. :is shonn. :intttne wheel lit-nigminst-: to z'otute by engagement nl snid sinkt-:s vt ith the needles,:ii'iez' the manner nl' n spnr wheel :nid

pin ion.

ilftving thns described in v invention. I claim :ind desire to secure byLetters Patent:

l. A :ib knitting machine having two sets ol' in edles. :i knittingyat-:n guide. means for knitting upon the needles` n .lleeeing yarnguide. and ineens whereby needles of one set are caused vto engage anddra-w stitches oll snid lieecing yarn. said means including lleecingyatn engaging devices occupying a. lixed telzttion to the needles of themachine.

L. tib knitting nnichine having two sets vol" needles. u knitting yarnguide, mea-ns for knitting upon the needles, n. ileeeing yarn guide. andmeans whereby needles of one set :1re caused to dran loops of saidileeeing yzi;n. said means itnxlnding lleecing yarn engaging devicesdisposed between 'the needles oil one set :ind occupying u iixedrelation to sind needles.

3. iib knitting machine having tivo sets ef needles. u knitting yat-nguide, means for knitting upon the needles. a. ieecinv yarn gciitie.means l'o.' dnwing loops; of said` fleecing yan by the needles nl oneset only, and liet-cin;T yam engaging devices notched to en- ::tge seidieeeing ya n and prevent rise of tne suine ith the needles nt theknitting print.

4. Lib knittingr nmehine having tivo sets nl riet-tiles, n l-:nittingyarn guide. means for knittingt npnn .said needles. n. lleecing vztrngnitze. nienns fu; d'aiiving loops of said yarn by tite needles nl unesetonly, and lieecing yu-.n engaging devices ocenpying a fixed relationto said needles und notched to pievent rise of the lleecing yann withthe needles at the knittingr point.

ln testimony whereof, I have signed my name 'w this speciticution, inthe presence of tivo subset ibing witnesses.

ROBERT QCOTT.

Witnesses:

